Average Bench: 118% (181st of 1058)

Based on 10,584 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 256GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 256GB averaged 17.8% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 346MB/s
Avg. 4K-64Thread Read Speed 768MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 256GB is 76.5%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 222MB/s
Avg. Sequential Write Speed 255MB/s
ADVERTISEMENT

Average Bench

(Based on 10,584 samples)
Min Avg Max
548 Read 912 1,036
90.7 Write 255 308
137 Mixed 282 355
60.6 SusWrite 222 299
91.3% 418 MB/s
Min Avg Max
17 4K Read 39.3 41.6
35.7 4K Write 104 151
12.6 4K Mixed 30.5 39.8
154% 58 MB/s
Min Avg Max
235 DQ Read 768 987
93.1 DQ Write 254 314
131 DQ Mixed 346 425
298% 456 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
75GB free
Firmware: 7D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 289 292 292 293 292 282 MB/s
Read 897
Write 299
Mixed 333
SusWrite 290
100% 455 MB/s
4K Read 41.4
4K Write 147
4K Mixed 36.4
187% 75 MB/s
DQ Read 983
DQ Write 306
DQ Mixed 417
367% 569 MB/s
190GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 297 292 285 298 283 271 MB/s
Read 979
Write 306
Mixed 306
SusWrite 288
103% 470 MB/s
4K Read 40.2
4K Write 126
4K Mixed 32.1
168% 66 MB/s
DQ Read 985
DQ Write 310
DQ Mixed 416
367% 570 MB/s
238GB free
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 299 298 298 297 297 295 MB/s
Read 958
Write 303
Mixed 364
SusWrite 297
106% 481 MB/s
4K Read 31.4
4K Write 98.5
4K Mixed 33.4
142% 54.4 MB/s
DQ Read 976
DQ Write 310
DQ Mixed 432
374% 573 MB/s
45GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 281 156 139 129 135 127 MB/s
Read 1,007
Write 299
Mixed 328
SusWrite 161
98% 449 MB/s
4K Read 38.7
4K Write 103
4K Mixed 37.1
160% 59.5 MB/s
DQ Read 986
DQ Write 309
DQ Mixed 393
356% 563 MB/s
199GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 283 265 291 288 291 293 MB/s
Read 869
Write 299
Mixed 305
SusWrite 285
96% 439 MB/s
4K Read 37.9
4K Write 108
4K Mixed 25.5
147% 57.1 MB/s
DQ Read 832
DQ Write 306
DQ Mixed 409
345% 516 MB/s
173GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 294 292 289 280 289 291 MB/s
Read 830
Write 306
Mixed 312
SusWrite 289
96% 434 MB/s
4K Read 33.8
4K Write 89.8
4K Mixed 32.4
140% 52 MB/s
DQ Read 596
DQ Write 307
DQ Mixed 413
317% 439 MB/s
10,584 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 47,207,617 SSDs tested.

Typical PM951 NVMe PCIe M.2 256GB Builds (Compare 1,622 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 10%
Tree trunk

System: Alienware 15 R2

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 256GB systems:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
Solid State Drive Rankings (Price vs Performance) September 2021 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

ADVERTISEMENT

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.

Excellent

4 years ago.

Fast as heck...at half speed I might add!


Your
opinion?
1058 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-11600K $270Nvidia RTX 3060-Ti $400Crucial MX500 250GB $45
Intel Core i5-11400F $260Nvidia RTX 3070 $500Samsung 860 Evo 250GB $52
Intel Core i7-11700K $380Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $77SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $72G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback